Lubricator.



S. &J. JOHNSON.

LUBRICATOR.

APPLICATION FILED MAR. I3. 1915.

Patented Apr. 25, 1916.

a SHEETS-SHEET I.

s.v & 1. JOHNSON. LUBRICATOH. APPLICATION FILED MAR.13.1915.

Patented Apr.

3 SHEETS- SHEET 2.

S. & J. JOHNSON.

LUBRICATOR.

APPLICATION FILED MAR. 13. 1915.

l? llg., Patented Apr. 2,5, 1916.

3 SHEETS-SHEET 3.

@Hoz n c lg SWEN JOHNSON, OF HURON, AND JOHN JOHNSON, 0F ARLINGTON, SOUTH DAKOTA.

LUBRICATOR.

Specification of Letters Patent.

Patented Apr.. 2.5, 12165.

Application led March 13, 1915. Serial No. 141,151.

To all whom t may concern.:

Be it known that we, SwEN JOHNSON and JOHN JOHNSON, citizens of the United States of America, residing, respectively, at

Huron, county of Beadle, State of South Dakota, and Arlington, in the county of Kingsbury and State of South Dakota, have invented certain new and useful 1mprovements in Lubricators, of which the following is a specification.

The present invention relates to improvements in lubricators, andis especially designed to provide a system of control and automatic feed for lubricators, as applied to locomotive engines.

The primary object of the invention is to utilize in connection with the automatic feed to the cylinders of the engine, a supplemental manually operated means by which the automatic feed regulator may be used when the locomotive is not working, but is drifting or coasting, in order that oil may be fed to the cylinders as usual.

The invention consists in certain novel combinations and arrangements of parts as will be hereinafter more fully pointed out and claimed.

1n the accompanying drawings we have illustrated one complete example of the physical embodiment of our invention, constructed according to the best mode we have so far devised for the practical application of the principles of the invention.

Figure 1 is a view in elevation, showing the oil chamber and its attachments involving our invention. Fig. 2 is a longitudinal vertical sectional view of the upper portion of the wall of the oil chamber showing the channels and passages from the oil chamber. Fig. 3 is an enlarged transverse sectional view Of the oil chamber showing one of the connections for oil to the cylinders. Fig. i is a sectional view showing the automatic control device and its manually operative connections. Fig. 5 is an outside view of the cylinder of the control device. Fig. 6

is a view showing the operating lever. Fig.V

7 is an edge view of the lever. Fig. 8 is an end view of the cylinder of the automatic feed control. Fig. 9 is a sectional view showing the feed control device. Fig. 10 is a sectional view showing the automatic feed Kcontrol to the air pump.

ln the preferred embodiment of our invention we employ the oil chamber 1, which is attached by means of the bracket 2 to the boiler head, and a drain 3 and inlet or filling opening l are provided for the oil chamber as usual.

In the upper' wall of the cylinder which forms the oil chamber, we have illustrated connections as A, B, and C, which are adapted to supply oil to the air pump and to the two main cylinders, respectivelyT through the pipes A', B, and C. The bulls eye chambers 5, 6 and 7 which form the connection between the feed to the air pump and cylinders, and the oil chamber, are in communication with the interior of the oil chamber, as shown in Fig. 2. The chamber 5 is connected with the oil chamber through the vertical passage 8 and the enlarged port 9 between which is located a seat 10. This seat and Opening are adapted to be governed by means of the automatically Operated valve stem 11 o-f the piston 12, which is attached to the diaphragm 13, and movable in the chamber 14C of the automatic steam feeding device for the air pu1np. r1`he steam is admitted to the chamber 15 of this device through pipe 16 and outlet 17, and the pressure of steam, as will be readily understood, moves the piston 12 against spring 18 to open or close the valve seat 10, as the steam pressure varies as usual. The usual condensing chamber 19 is connected to the oil chamber, and steam for the chamber is conducted thereto through the pipe 20.

The feed of lubricant to the two engine cylinders is governed and regulated by the automatic control device at the opposite end of the cylinder 1. rlfhis device is attached to the threaded boss 21 by means of the coupling 22. vThis coupling has a passage therethrou h for the piston stem 23 which is movable in the channel 24, extending through the upper wall of the valve chamber, and this channel 24 is connected by vertical passages 25 and 26, to the respective chambers 6 and 7. Seats 27 and 28 are provided in the channel 24 for a needle valve as 29 by which the flow of oil through the respective vertical passages 25 and 26 may be permanently Xed. In Fig. 3, one of these needle valves is shown connected through the boss 30 and gland 31, and provided'with a head 32 for turning the stem.

These needle valves regulate the permanent flow of oil Vto the main'v cylinders. The ch-annel 24 co-mmunicates -With vthe interior ofA the oil chamber through a port 33, and it will readily be understood that the oil flows Lthrough the port 33, channel 24, and the passages 25 'and 26 to the respective cylinders When the engine or locomotive is Working. A valve seat 34 is provided Tin the channel 24 for the piston-stem 23, and this piston stem or valve stem governs the passage-of oil throughs-the opening-orseat' 34. It will be understood that the supply-tothe cylinders is-'cut off When the engine is not Working-by ythe'needle valves 23, and the automatic control device is adapted-to both automatically,v and manually control the feedof oil through the valveseat 34.

The-.valve stem 23 is formedrwith a piston 35 movable in the cylinder 36 of the control device. This cylinder is threaded on to the coupling22, as shown in Fig-9, and the cylinder receives steam through thev openings 36 andA 37, Which are connected by pipes to the source of supply. The piston 35 is movableinvthe 'cylinder 36 against the pressure of aspring 37, and in this manner 'the flow of oilthroughthe valve seat 34 is regulated by the steamv pressure passing throughy the ports l38-38 into the cylinder 36, and movingthe val-ve stem by pressure on'the piston 35, as understood. The piston 35 is formed With-an extension or post 39, and around ythis post -isglocated-a bushing-40-having an enlarged -endorhead 4l seated in the annular recess 42 of the piston. In lFig. 4, it Will readily be seen that thesprin-g 37 has one end v43'securedin a cavity or recess in the head 4l, and its other end 44 issecured in a cavity =or recess in the reduced end yof the cylinder 36.

`Atthe end of the cylinder anjoperating lever 45 is attached.A This lever has an open round-,head 46 vand its over the end of the bushing `40, 'andis secured thereto bymeans of a key 47. The head 46 of the lever has a cam face or projection 48 Which is adapted to-engage with either the tvvo recesses V49-or 50 onthe end ofthe boss 5l integral With the cylinder 36,A By meansof a Washer 52gand a key 53 which secures the Washer to the post 39, the-lever 45 is secured on thebushing and postffagainstremoval, but it will be understood-that the'lever 45` may be oscillated on thepost through the bushing 40. Thus, in addition -tothe regulation of the flow of oil through the-seat 34 by the pressure, the oil feed may berregu'lated by movement of this lever 45. For instance, with the projection 48=in1the recess 5.0, the oil is permitted to pass through .the seat 34.

When a locomotive is making an extended coast,..or drifting, after the steam has been shut ofi, andl it becomes necessary to feed oil to the cylinders, the lever 45 may be turned v The lever is held in this position by the cam projection which prevents movement of the projection48 from the recess 50. When f' the steam is again applied and the piston 35 is moved back by the steam pressure against the coil spring 37,.,the head 46 of the lever is freed' from the boss 5l, and the .torsional strength of the spring37 is exerted to swing the lever 45 baclr to its original position, and the automatic action of the feeding device is again operative. In this manner thevlubrieating stem may be controlled both automaticallyfand manually, and the, piston feed device of the combined automatic and manual controlpermitsroil to l`flow to the engine when it is working under usual conditions and automatically, but in addition permitsthe How of cih-When the lever is properly actuated, to the cylinders, although the engine may not Vbe Working. It will be understood, ofcourse, that the chambers .5, 6 and 7 are closed with the `proper devices and contain' the'water, `as usual, through Whichtheoilfijlows and the oil is conducted by the suitable pipes totheiair pump andto the tvvo marin cylinders of the. engine.

From the above "description taken in connection with our drawings, it is evident that we have provideda system of lubrication for locomotive engines which is facile, economical, and eicient in operation, both under the vusual automatic conditions, and

under .the manual control, .and the device is of I,f great value in that it provides means `by which the Vengineer Amay feel assured at all times that proper lubrication of the parts is going on.

What vve claim is:

l. The combination in fa lubricating system-including an oil chamber ,and an oil channel, 'and connections Withthe main cylinders lof an engine,"of a valve stem, a cylinder -and Aa piston on the stem., manually operabley for permittingflow of oil during the absence offsteam pressure, and said cylinder-'and' piston coacting With'the stem Whenactuated by steam pressure for automaticallypermitting control of the oil valve by steam pressure.

2. A Huid; pressure" operated control devicecomprising a valve stem, va cylinder and a piston onthe stem movable in the cylinder, a Apost forming an 'extension of the stem, a bushing on' the post and a spring surrounding saidbushing and located between a portionoffthe cylinder and said piston,'and said cylinderhaving 'an' inlet for 'steam pressure at the side of the piston opposite the spring.

medew m 3. A lnbrioator feed regulating device In testimony whereof We aix our signem comprising a cylinder with a piston and tures in presence of two Witnesses.

valve stem therein and a post forming an SWEN JOHNSON. extension of the valve stem, a bushing on JOHN JOHNSON. said post, an operating lever xed to the Witnesses:

bushing, means for adjusting said lever rela- MAX ROYNL,

tive to the cylinder, and means Within the M. E. MEDBERY,

cylinder for holding the lever in normal WM. l?. ALLEN,

position, H. G. TAMMERNIK.

comme of this patent may be obtained for tive cents each, by addressing the Commissioner of Wetemm, Washington, D. C. 

